natural resources wales llyn tegid reservoir safety
TRANSCRIPT
Natural Resources Wales
Llyn Tegid Reservoir Safety Project
Environmental Action Plan
November 2019
Version 2
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
1
Project Name Llyn Tegid Reservoir Safety Project
Project 1B1S Reference
Region and Area Llyn Tegid, Bala, North Wales
Date November 2019
Version Number 2
Author(s) David Johnson
Revision History
Revision Date Summary of Changes Author(s) Version No.
21/11/19 Revisions following NRW review;
issued for public consultation
David Johnson 2
EAP Approvals
Name Signature Title Date Version
Distribution
Name Title Date Version
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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Purpose
This Environmental Action Plan (EAP) summarises the actions and requirements identified in relation
to the modifications to the existing water impounding structures at Llyn Tegid, following an
Environmental Assessment of the proposal. It sets out specific objectives and targets defining the way
in which we wish the findings to be addressed during the works. It also details roles and responsibilities
of those involved in the project. The EAP should be read in conjunction with the appended
Environmental Constraints and Opportunities Plans 1-4 (drg no. 122918-BVL-Z0-00-DR-I-00011 to
00014 and Environmental Constraints and Opportunities Record (file no. 122918-BVL-Z0-00-RP-I-
00005).
This EAP follows NRW guidance as an example of best practice for addressing environmental risks. It
will form the basis of any future contract documentation and must be adhered to at all times.
Roles
Each action in the table below has one named person who is responsible for ensuring that the action
is implemented. It is ultimately the contractor’s responsibility for ensuring the EAP commitments are
delivered.
The contractor is also responsible for implementing good environmental practice on site, in line with
their own EMS. Typical issues include:
• Any working hour restrictions
• Dust suppression measures
• Traffic management
• Pre-construction and post-construction recording of highway and footpath conditions; carry
out remedial repairs if necessary
• Site waste management
• Materials management
• Maintenance of the carbon calculator
• Vehicle maintenance and management
• Pollution prevention and control (including NRW/Environment Agency Pollution Prevention
Guidelines (PPGs) for storage, refuelling and incident response1); silt traps will be deployed
upstream and downstream if necessary
• Adherence to ‘Code of Considerate Practice’ under the Considerate Contractors Scheme
• Response procedures, e.g. services strike, contaminated land
• Hazardous materials handling and storage
• Noise management
• Securing and delineation of working areas including signage and fencing
1 Although Pollution Prevention Guidelines has been officially withdrawn, and as such are no longer being
updated, they are still considered to provide useful guidance for developers.
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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• Keeping construction sites clean and tidy during the works, including no storage of material
outside of pre-defined working areas
• All waste to be removed and sites to be left clean and tidy at the end of the works. All
temporary works removed and areas reinstated to as good a condition as previously, including
reinstatement of any vegetation if required.
Consents and Licenses
Planning permission from Snowdonia National Park Authority, and a Flood Risk Activity Permit (FRAP)
are required from NRW to undertake the works. Supporting these consents will be an Environmental
Constraints and Opportunities Record and a Design and Access Statement (planning permission), a
Habitats Regulations Assessment (HRA) using NRW OGN 200 Form 1 (planning permission, FRAP and
SSSI Assent), and a WFD Compliance Assessment (planning permission and FRAP), all of which will be
submitted to NRW Protected Sites Team for approval.
Environmental Compliance Audits
The appended template should be used when undertaking any site audits during construction. Such
audits can be undertaken by EAT Environmental Project Managers (EPM), Environmental Clerk of
Works (ECW) or delegated to other individuals as appropriate; the timing and frequency of these is to
be confirmed. Technical assistance can be obtained from functional staff as appropriate.
Environmental compliance audits can potentially highlight good practice and can be separate to the
review of EAP actions as undertaken in progress meetings. They do not replace the regular checks
undertaken by the project team during the works; no set template has been provided for this.
Environmental Incident Reporting system
All environmental incidents must be reported to the NRW Incident Hotline 0800 80 70 60 at the
earliest opportunity and then (where present) to the Project Manager, Site Supervisor and NRW
Project Managers. In addition, near misses must be reported via the hotline where there was/is the
potential for a significant impact and where lessons can be learned.
Initial reports for such incidents and near misses must be followed by a written report using the
contractor’s in-house forms. This must include the following information:
• Project/location
• Date
• Contractor
• National Incident Recording System (NIRS) reference number
• Details of what happened
• Cause of incident
• Lessons learned
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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This final and comprehensive investigation report is to be provided by the Contractor to (where
present) the Project Manager, NRW Project Manager, NRW Environmental Project Manager and
Safety, Health and Environment Manager within 14 days.
Summary of scope of works
This EAP includes actions required to undertake the modifications to the existing water impounding
structures at Llyn Tegid, which will involve the following work:
Protection of the River Dee embankment (left bank).
• A berm up to 6m wide will be installed on the downstream / dry side toe along some sections
of the embankment, increasing the ground levels typically by 300-400mm. The extents of this
are shown on the design drawings.
• Embankment protection will consist of a 3D geotextile membrane installed under the topsoil
surface on the downstream / dry side of the embankment, upon completion the surface will
be grassed as existing. The protection will extend over the berm where present, or otherwise
approximately 2m beyond the existing embankment toe line.
Protection of the northern lake (Llyn Tegid) embankment:
• A berm up to 6m wide will be installed on the downstream / dry side toe along some sections
of the embankment, increasing the ground levels typically by 300-400mm. The extents of this
are shown on design drawings.
• Embankment protection will consist of a 3D geotextile membrane installed under the topsoil
surface on the downstream / dry side of the embankment, upon completion the surface will
be grassed as existing. The protection will extend over the berm where present, or otherwise
approximately 2m beyond the existing embankment toe line.
• ‘Rip rap’ works: the existing slate stone rip-rap protecting the upstream (wet side) of the
embankment will be removed and replaced with imported granite (or similar) stone, while
existing granite will be re-used. The removed slate will be reprocessed for use elsewhere on
the site where possible, such as for infilling the bandstand area, constructing the berm or
resurfacing the overflow car park. Proportionally the imported stone will make up
approximately 80%-100% of the overall stone rip-rap. Visually this face of the bank will
become harder (existing vegetation to be removed) and the stone will be ‘rougher’ / more
angular, as required to improve performance in reducing wave energy.
• Realignment of the embankment at the 'bandstand', currently the alignment causes a
concentrating effect of wave energy increasing stress on the embankment during storm
events. This will result in some incursion into the ecologically designated lake foreshore (SSSI,
SAC and Ramsar).
Environmental mitigation:
• Tree and hedgerow planting will be delivered to mitigate for the tree and hedgerow clearance
works.
o More trees will be planted than are removed.
o The species used will be native to the area and similar to those removed.
o Replacement planting will focus on replacing the ecological function and value of the
existing tree lines, with the aim to ensure no net loss in ecological resilience or
connectivity.
• Management and removal of invasive non-native plant species from the lakeshore and river
embankments.
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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Environmental enhancements:
• Existing footpaths along the lake embankment (i.e. the PROW ‘Y Bala Rhif 4’), River Dee
embankment and Afon Tryweryn embankment (i.e. the PROW ‘Y Bala Rhif 1’), will be
improved in relation to good practice guidance for accessibility, including ‘By all Reasonable
Means’ (BARM) (NRW, 2017), and the British Standard ‘BS 8300‑1:2018 - Design of an
accessible and inclusive built environment (Part 1 – External Environment)’. These works have
been informed by a comprehensive Access Audit for the works area, undertaken in accordance
with BS8300-1 and BARM. Further details of these access improvements are provided below:
o Y Bala Rhif 4 is currently surfaced with tarmac, and will be re-surfaced in tarmac, with
regularised levels, improved surface quality (eliminating existing problems of tree
roots damaging / uplifting surfacing), and reducing gradients where possible
o Y Bala Rhif 1 is currently surfaced with unbound stone, and will be resurfaced in
tarmac, to a consistent 2m width
o Pedestrian access control barriers, where present within the construction area, will
be removed where practical to do so, or replaced with more accessible solutions
where possible
o Additional waymarker signage and seating will be provided for users of the PROWs
o Where ramps branch off the PROWs to provide access to the lake foreshore and other
adjacent spaces, the gradients and widths of these will be optimised as much as
possible, within site constraints
o An improvement will be delivered in terms ‘clear walking tunnel’ requirements, i.e.
BS8300-1 and BARM specify vertical and horizontal clear space requirements for
accessible routes, which are currently not achieved along Y Bala Rhif 4 due to low and
overhanging branches; as a consequence of the required vegetation clearance works
Y Bala Rhif 4 will become compliant with both BS8300-1 and BARM in this respect.
• Focus is given to footpath and access improvements between Penllyn Leisure Centre and the
lakeshore car park, as a particularly popular and intensively used area, exploiting the benefits
of the more open views created by the scheme. The open space to the south of the leisure
centre will be enhanced with new hard and soft landscaping, new seating, and improved steps
and ramped access; linked to this an existing ramp to the foreshore will be re-aligned and
reconstructed to a significantly reduced gradient.
• The lakeshore overflow car park (adjacent the Bala Adventure & Watersports building) is to
be re-organised and re-surfaced, with a more efficient and formalised layout designed to
optimise parking capacity within reduced hard surfacing. There will be a net increase in soft
landscape / decrease in hard surfacing as a result, delivering visual enhancements as well as
practical improvements through a semi-formal layout.
• Associated with the re-organisation of the lakeshore overflow car park, areas of wetland
habitat within the protected SAC/Ramsar site, which are currently in sub-optimal condition
due to compaction from vehicles, will be protected from further compaction enabling
improvement to habitat condition.
• Changes in grassland management to encourage greater floristic species diversity.
• Installation of interpretative signage at key locations.
• Integration of community artwork with the creation of a series of features carved from felled
timber, using a local artist to create a locally meaningful narrative.
Works are proposed to start in late 2020 and will take up to 2 years to complete.
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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Relevant contact details
NRW Project Sponsor James Williams
03000 653912
NRW Project Executive Scott Squires
NRW Project Manager Matthew Jenkins
0300 065 3274 / 07584 461248
NRW EAT Officer Laura Cotton
03000 654524 / 07786 110135
NRW Operations Llyr Jones
03000 653618 / 07468 742778
ECW TBC
Contractor TBC
Site Supervisor TBC
Design Consultant Black & Veatch
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
A - Prior to Construction
1 – Human Population
A1.1 To communicate
information about the
proposed works
Obtain agreement for the works from
landowners and keep them informed of
the programme, likely impacts and
duration of the works. Provide contact
details for queries.
NRW PM
Notice of entry to be issued at least 7
days before the works begin.
NRW PM
Notifications to neighbouring residents
/ businesses as required. Note: there are
a number of neighbouring land uses in
close proximity to the embankment
which could be affected by works,
including Bala rugby club, watersports
centre, leisure centre and cafes with
associated car parking and access
requirements.
NRW PM
A1.2 To minimise impact to
users of public rights of
way, permissive paths,
open spaces and recreation
uses
Plan construction works to minimise
temporary closures of public rights of
way and permissive paths.
Contractor Environmental Constraints
and Opportunities Plan 1
(122918-BVL-Z0-00-DR-I-
00011)
Identify key constraints on the timing of
construction works to reduce
environmental impacts, avoid conflicts
with tourism and leisure users, and local
events and include these in works
information and contract.
NRW Construction planned to commence in late
2020 (after peak tourist season) and take
up to 2 years to complete.
Local events to consider when planning
timing of works and communications with
organisers include:
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
• Bala Big Bash (triathlon and
open water swimming event) –
June (possibly moving to
September 2020)
• Bala Big Swim – early June
• Wild Wales Cycling Challenge –
late August
• Wales Rally GB – late October
• Park Run – held every Saturday
along Y Bala Rhif 1 from
Tryweryn Bridge to Dee Bridge
Develop Publics Right of Way
Management Plan (or similar) to
describe closures and diversions and
how these are to be managed to ensure
they remain safe to use and disruption
to users is minimised.
Contractor
Establish notices detailing works to be
carried out in the area.
Contractor
Apply for and obtain temporary and
permanent footpath closures/
diversions as required.
Contractor
2 - Flora and Fauna
A2.1 To avoid impacts on
nesting birds
Plan vegetation clearance to take place
outside of the peak nesting season
(March to September inclusive).
Contractor Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
Construction planned to commence in late
2020 (outside of nesting season)
A2.2 To avoid impacts on
roosting bats
Plan tree felling/ clearance to be
undertaken during winter months
Contractor The majority of trees to be felled are of
negligible bat roost potential. There will
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
(November to January) to reduce risk of
encountering bats. Trees with high bat
roost potential to be inspected
immediately prior to and/or supervision
during felling.
Bat licenced
ecologist
Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
Bat Roost Potential Survey
Report (122782-BVL-Z0-00-
RP-I-00010)
Bat Survey Report (Egniol
Environment, 2019)
be approx. 16 trees of low bat roost
potential, approx. 14 of moderate bat
potential and approx. 1 of high bat roost
potential which are due to be felled.
Apply for a European Protected Species
Licence for the entirety of the works to
include method statement detailing
how impacts on bats will be reduced.
B&V
In the event that construction is delayed
and tree felling/ clearance is not due to
commence before January 2021 then
bat surveys would need to be repeated.
Contractor
Bat licenced
ecologist
A2.3 To avoid impacts on
nocturnal animals (bats,
hedgehogs, badgers and
otters)
Plan for no night time working to reduce
impacts on nocturnal mammals.
If unavoidable (e.g. at dusk on short
days), plan to use sensitive directional
lighting where necessary to ensure no
light spill into adjacent habitats.
Contractor Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
A2.4 To avoid impact on
Reptiles
Reptile checks to be undertaken by
ecologist prior to, and during, removal
of rip rap stone, as directed by the
Ecological Clerk of Works (ECoW) on
site. If found, to be moved by ECoW to a
suitable location nearby. Removal of rip
rap should be undertaken outside of the
hibernation period (generally Nov-Feb
depending on temperatures.
Contractor
ECoW
Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
Update EAP as required.
A2.5 To avoid impact on Otters
(SAC Designated feature 5)
Undertake pre-construction survey for
evidence of otter. If evidence is found
and the works will cause destruction or
disturbance of a holt or resting place
then further mitigation work may be
required, ranging from a licence to an
inspection of the sites each morning to
ensure that otters have left the area.
ECoW
Contractor
Environmental Constraints
Plan 2 (122918-BVL-Z0-00-
DR-I-00012)
A2.6 To avoid impacts on
Badgers
Undertake pre-construction check of
construction compound area to ensure
no new setts have been created close to
the proposed works.
ECoW Phase 1 Habitat Survey
(122918-BVL-Z0-00-DR-I-
00007)
No badger setts or signs observed during
Phase 1 Habitat Survey (BVL, 2019), but
habitats suitable to support badgers.
A2.7 To avoid impacts to
marginal vegetation
(Ramsar criterion 2)
Undertake pre-construction check,
during appropriate growing season, of
Llyn Tegid foreshore within marginal
vegetation areas for the plants
mudwort Limosella aquatica, six-
stamened waterwort Elatine hexandra,
water sedge Carex aquatilis.
If any plants found then reasonable
avoidance measures to be made to
avoid disturbing plants. If cannot be
avoided then mitigation will be agreed
with NRW, potentially including
translocation where suitable.
ECoW Habitats Regulations
Assessment (122918-BVL-
Z0-00-RP-I-00001)
A2.8 To avoid impacts to various
aquatic flora (SAC
designated feature 1)
Plan construction to prevent surface
runoff into SAC watercourse through the
use of silt fencing in key areas.
Contractor Habitats Regulations
Assessment (122918-BVL-
Z0-00-RP-I-00001)
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
A2.9 To avoid unnecessary loss
and damage of trees
Plan construction works to avoid root
protection areas (RPA) of trees to be
retained where possible in accordance
with provisions of BS5837:2012.
Install Tree Protection Fencing in
accordance with the Tree Protection
Plan (Tree Solutions, 2019) prior to
commencement of construction.
Contractor
Arboricultural Impact
Assessment and
Preliminary Tree protection
Plans (Tree Solutions, 2019)
Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
A2.10 To avoid impacts to trees,
hedgerow and hedgerow
ecology around
construction compound
field boundaries
Plan construction compound to include
a buffer zone around boundaries of
fields to protect tree protection zones,
hedges, ditches and unmanaged grass
strips. Encroachment into the buffer
zones to be prohibited at all times.
Contractor Phase 1 Habitat Survey
Report for additional site
areas and validation (BVL,
2019)
A2.11 To prevent the spread of
invasive non-native species
(INNS) (plants)
Develop species specific method
statements for the management and
treatment of invasive species in
accordance with the Invasive Species
Management Plan, including for pre-
construction survey, treatment,
management and removal of
Himalayan balsam and Japanese
knotweed.
Contractor
EcCoW
Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
Invasive Species
Management Plan (BVL,
2019)
A2.12 To prevent the spread of
invasive non-native species
(INNS) (aquatic
invertebrates)
Plan construction works to adhere to
best practice biosecurity requirements
to reduce risk of introducing aquatic
invertebrate invasive species into the
area.
Contractor Check, Clean, Dry campaign
(http://www.nonnativespec
ies.org/checkcleandry/bios
ecurity-for-everyone.cfm)
Invasive Species
Management Plan (BVL,
2019)
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
A2.13 To prevent the spread of
disease including ash die
back and elm disease
Prepare Biosecurity Risk Assessment for
works affecting trees with potential to
have ash die back or elm disease. Plan
works to ensure provision for cleaning
equipment and machinery prior to entry
to and exit from site.
Contractor
3 - Landscape and Visual
A3.1 To plan for landscape
reinstatement
Produce reinstatement plans detailing
specifications and locations for new and
replacement landscape planting.
B&V Landscape Masterplan (in
progress)
Tree Management Plan (in
progress)
To ensure new and replacement
landscape planting establishes where
possible protect areas identified for
landscape planting from compaction
and contamination during construction.
Contractor
A3.2 To record the condition of
the site prior to any works
being undertaken
Undertake a pre-works condition survey
(including photos) of works area and
access routes.
Contractor
4 - Traffic and Transport
A4.1 To minimise disruption to
traffic and pedestrians
Develop Traffic Management Plan
(TMP) to include requirement for all
construction traffic to avoid travelling
through the centre of Bala.
Contractor
A4.2 To maintain quality of local
roads and footways
Undertake pre-works condition audit of
sections of B4391 and Tegid Street
which will be used to access the site.
Contractor
5 - Material and Waste
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
A5.1 To minimise the amount of
waste taken to landfill and
ensure compliance with
legal controls
Prepare a Site Waste Management Plan
(SWMP) to consider the waste types and
quantities that are likely to be produced
during the course of the project, with
management actions including re-use,
recycling, recovery and disposal, and a
declaration that waste will be managed
appropriately and in accordance with
the Duty of Care.
Contractor
Plan re-use of slate stone rip-rap on site,
such as for infilling the bandstand area,
constructing the berm or re-surfacing
the overflow car park.
Contractor Leisure Centre
Enhancement Plan
(122918-BVL-Z0-00-DR-L-
00003
Car Park enhancement Plan
(122918-BVL-Z0-00-SK-L-
00002)
6 - Soils, Geology, Water and Hydrogeology
A6.1 To minimise pollution risk
to soils, water and
groundwater
Produce a Pollution Incident Response
Plan (PIRP) for adherence throughout
construction, which will include
pollution prevention measures
including:
- Use biodegradable oil within
hydraulic parts of vehicles working
near the water course
- Ensure all high risk activity occurs
away from the river and lake
foreshore (e.g. re-fuelling)
Contractor
Plan works to avoid tracking through
watercourses. If unavoidable,
Contractor
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
particularly along lake foreshore when
lake levels are high, permission is to be
sought from NRW prior to tracking
through watercourse.
7 – Planning and Permitting
A7.1 To obtain and comply with
all necessary consents
Obtain planning permission from
Snowdonia National Park Authority
B&V
Discharge any pre-commencement
planning conditions before starting
work
Contractor
Obtain Flood Risk Activity Permit for the
permanent works
NRW
Obtain Flood Risk Activity Permit for the
temporary works
Contractor
Obtain SUDs approval from Gwynedd
Council
NRW
A7.2 To comply with all consent
conditions
Update the EAP to include any
conditions of the Planning Permission
and Flood Risk Activity Permit.
B&V
8 – Archaeology and Cultural Heritage
A8.1 To avoid impacts to
potentially historic wall
Plan for removal of section of stone wall,
to form access to main construction
compound off Tegid Street, to be done
by hand under archaeological watching
brief.
Contractor
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
Consult with Gwynedd Archaeological
Trust to confirm level of reporting
required.
NRW
B – During Construction
1 - Human Population
B1.1 To communicate
information about the
proposed works
Establish onsite information boards and
signs immediately before works
commence. Signage should include a
contact name and telephone number for
the site supervisor during normal
working hours.
Contractor
Keep neighbouring residents /
businesses informed of progress and
changes throughout the construction
period.
NRW
B1.2 To minimise impact to
users of public rights of
way, permissive paths,
open spaces and recreation
uses
Ensure safe public access to and along
Public Rights of Way and permissive
paths is maintained throughout the
works. Adhere to Publics Right of Way
Management Plan developed at Clause
A1.2.
Contractor Publics Right of Way
Management Plan (Clause
A1.2)
Environmental Constraints
and Opportunities Plan 1
(122918-BVL-Z0-00-DR-I-
00011)
Gwynedd Council is the Highways
Authority - Contact Liz Haynes 01341
424430
Works to be suitably fenced or signed
and supervised by a banksman at all
times in order to ensure the safety of
members of the public.
Contractor with ECW
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
Ensure all excavations are backfilled or
fenced overnight and all equipment
securely stored.
Contractor
B1.1 Undertake works during
sociable hours
Works, particularly noise generating
works, to be restricted between 8am
and 6pm. Any works outside of these
hours must be agreed with SNP’s
Environmental Health Officer.
Contractor
B1.2 To maintain access to
properties, businesses and
local amenities
Ensure adequate and safe access is
maintained to all properties and
businesses during the work.
Contractor
2 - Flora and Fauna
B2.1 To avoid impacts on
nesting birds
Undertake all vegetation clearance
outside of peak nesting season (March
to September inclusive). Where
vegetation is strimmed back to dissuade
nesting birds regular re-strimming is
required to prevent vegetation
becoming suitable for nesting birds.
In the event an active nest is found then
works will need to stop within a buffer
zone as defined by the ECoW until the
young have fledged.
Contractor with
ECoW
Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
B2.2 To avoid impacts on
roosting bats
Working under bat licence, remove high
bat roost potential trees under
supervision of an experienced bat
ecologist (with class licence 2 or above),
including close inspection and/or
Contractor with
suitably qualified
ecologist
Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
sectional felling to ensure no bats are
affected.
Bat Roost Potential Survey
Report (122782-BVL-Z0-00-
RP-I-00010)
Bat Survey Report (Egniol
Environment, 2019)
B2.3 To avoid impacts on
nocturnal animals (bats,
hedgehogs, badgers and
otters)
If night time working is unavoidable
(e.g. at dusk on short days), use sensitive
directional lighting and ensure no light
spill into habitats.
Ensure all excavations are backfilled
overnight, or a means of egress
provided, and all equipment and waste
is securely stored or removed from site
overnight.
Contractor Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
B2.4 To avoid impact on
Reptiles
Reptile checks to be undertaken by
ecologist/ECoW prior to, and during,
removal of rip rap stone, as directed by
ECoW on site. If found, to be moved by
ECoW to a suitable location nearby.
Contractor with
ECoW
Clause A2.4
Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
B2.5 To avoid impacts on Otters
(SAC Designated feature 5)
Comply with actions identified at Clause
A2.5.
Undertake species specific toolbox talk
of good construction practice in relation
to otters.
ECoW Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
B2.6 To avoid impacts on
Badgers
Comply with actions identified at Clause
A2.6.
ECoW Phase 1 Habitat Survey
(122918-BVL-Z0-00-DR-I-
00007)
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
17
ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
In the event a badger sett is found an
exclusion zone will be established as
defined by the ECoW.
B2.7 To avoid impacts to
marginal vegetation
(Ramsar criterion 2)
Comply with actions identified at Clause
A2.7.
ECoW Habitats Regulations
Assessment (122918-BVL-
Z0-00-RP-I-00001)
B2.8 To avoid impacts to various
aquatic flora (SAC
designated feature 1)
Comply with actions identified at Clause
A2.8.
Contractor / ECoW Habitats Regulations
Assessment (122918-BVL-
Z0-00-RP-I-00001)
B2.9 To avoid unnecessary loss
and damage of trees
Comply with actions identified in Clause
A2.9.
Contractor Arboricultural Impact
Assessment and
Preliminary Tree protection
Plans (Tree Solutions, 2019)
Environmental Constraints
and Opportunities Record
(122918-BVL-Z0-00-RP-I-
00005)
B2.10 To avoid impacts to trees
and hedgerow around
construction compound
field boundaries
Comply with actions identified in Clause
A2.10.
Contractor
B2.11 To prevent the spread of
invasive non-native species
(INNS) (plants)
Comply with Invasive Species
Management Plan and species specific
method statements developed in Clause
A2.11.
Contractor Invasive Species
Management Plan (BVL,
2019) and Clause A2.10
B2.12 To prevent the spread of
invasive non-native species
Comply with best practice biosecurity
requirements identified in Clause A2.12.
Contractor Check, Clean, Dry campaign
(http://www.nonnativespec
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
18
ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
(INNS) (aquatic
invertebrates)
ies.org/checkcleandry/bios
ecurity-for-everyone.cfm)
B2.13 To prevent the spread of
disease including ash die
back and elm disease
Adhere to Biosecurity Risk Assessment
developed at Clause A2.13, ensuring all
machinery and equipment is clean and
free from soil/mud, leaf litter and plant
matter prior to entry to and exit from
site.
Contractor Clause A2.13
3 - Landscape and Visual
B3.1 To replace tree and
hedgerow removed and
provide enhancements
Adhere to Landscape Masterplan and
landscape reinstatement plans
produced at Clause A3.1.
Contractor Landscape Masterplan (in
progress)
Tree Management Plan (in
progress)
B3.2 To maintain an acceptable
site appearance during the
construction period
Maintain the working areas in a tidy and
orderly manner throughout the
construction period.
Maintain a photographic record of
works locations and access routes
throughout construction.
Contractor
4 - Traffic and Transport
B4.1 To minimise disruption to
traffic and pedestrians
Comply with TMP (Clause A4.1). All site
workers to use official access routes as
defined in the TMP and avoid travelling
through the centre of Bala.
Contractor
B4.2 To maintain quality of local
roads and footways
Monitor condition of sections of B4391
and Tegid Street used for construction
traffic and clean/sweep and repair as
Contractor
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
19
ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
necessary.
5 - Material and Waste
B5.1 To minimise the amount of
waste taken to landfill and
ensure compliance with
legal controls
Adhere to SWMP and update regularly.
Undertake regular audits of SWMP and
undertake corrective actions
accordingly.
Contractor Site Waste Management
Plan (Clause A5.1).
B5.1 To ensure appropriate
management of excavated
material
Excavated material to be stored on a
geo-membrane and suitably contained
to prevent entry into the watercourse.
Contractor
6 - Soils, Geology, Water and Hydrogeology
B6.1 To avoid impacts from
pollution on soils, water
and groundwater
Adhere to PIRP developed at Clause
A6.1) to ensure pollution control during
construction.
Plan works to avoid spills and silt
runoff.
Any spills or leaks which occur during
the operation are to be immediately
reported to the NRW project manager.
Contractor PIRP (Clause A6.1)
Seek permission from NRW if tracking
through watercourse is required.
Contractor
7 - Planning and Permitting
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
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ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
B7.1 To comply with all consent
conditions
Comply with conditions of planning
permission and Flood Risk Activity
Permit.
Contractor
8 – Archaeology and Cultural Heritage
B8.1 To avoid impacts to
potentially historic wall
Section of stone wall to be removed by
hand under archaeological watching
brief. Materials to be stored in a
suitable location on site to avoid
damage to stones.
Contractor
C – Post Construction
1 – Human Population
N/A
2 - Flora and Fauna
C2.1 To ensure marginal
vegetation (Ramsar
criterion 2) re-establishes
Post construction monitoring of
marginal vegetation areas affected
during construction to ensure plants re-
establish.
NRW Clause A2.7
Habitats Regulations
Assessment (122918-BVL-
Z0-00-RP-I-00001)
C2.2 To prevent the spread of
invasive non-native species
(INNS) (plants)
NRW to inspect works area following
the completion of works and treat any
INNS (hand pulling Himalayan balsam
early summer and spraying Japanese
knotweed if it occurs).
NRW
3 - Landscape and Visual
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
21
ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
C3.1 To ensure hedgerow and
tree planting establishes
Establish a five-year planting
maintenance programme, including for
new planting to be replaced if it does not
establish.
NRW PM Landscape Masterplan
C3.2 To reinstate access and
working areas
Ensure all working areas, construction
compound and access routes are
reinstated back to pre-works condition
or better.
Undertake a post-works condition
survey (including photos) of all areas.
Contractor
4 - Traffic and Transport
C4.1 To maintain quality of local
roads and footways
Undertake a post-works condition audit
of sections of B4391 and Tegid Street
used during construction. Restore to
previous condition or better in
accordance with findings of pre-works
audit (Clause A4.2).
Contractor
5 - Materials and Waste
C5.1 Leave no waste on site Remove waste from site as per SWMP
(clause A5.1).
Contractor SWMP (EAP clause A5.1).
6 - Soils, Geology, Water and Hydrogeology
N/A
7 – Planning and Permitting
C7.1 To comply with all
necessary consents
Discharge any post-construction
planning conditions.
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
22
ENVIRONMENTAL ACTION PLAN
Ref.
No. Objective Action Responsibility
Ref. to Additional
Information Further Action / Comments Sign Off
Date of
Revision
8 – Archaeology and Cultural Heritage
C8.1 To avoid impacts to
potentially historic wall
Stone wall to be reconstructed by hand
as part of reinstatement of main
construction compound.
Contractor
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
23
Environmental / Landscape Clerk of Works (ECoW / LCoW) Report
Report No: **
Project: ECoW / LCoW:
Contractor: Date:
NRW Project Manager: NRW Environmental Advisor:
Site Progress: (Brief description of works undertaken on site since previous ECoW / LCoW visit, also ref site
conditions.)
•
Environmental Aspects / Matters Arising: (Consideration should be given to following environmental
receptors and performance management measures – only need to reference when relevant. Record should
include incidences where contractor has introduced positive environmental measures as well as where they have
failed to deliver adequate measures).
Environmental Receptors:
1.Human Beings
2.Flora and Fauna
3.Air and Climate
4.Landscape and Visual Amenity
5.Water, Land Use
6.Cultural Heritage
7.Archaeology and Material Assets
8.Traffic and Transport
9.Soil, Geology and Hydrogeology
10.Use of Natural Resources
Performance Management:
1. Pollution:(evidence of protection? E.g. invasive species management 4. Site Protection & Mitigation: (EAP
implementation?)
2. Works & Community: (good communication/contractor relations?) 5. Follow on Works: (environmental
objectives met?)
3. Resource Management: (efficiency use of materials/energy?)
•
Displayed on site Yes / No
Environmental Action Plan
Environmental Constraints and Opportunities Plan 1-4
NRW Environmental Policy Statement & NRW ISO14001 Certification
NRW Environment Incident Report Card
Landscape Plans
Date ECoW /
LCoW last
inspected the
referenced
Report / Plans / Registers
List to be reviewed by NRW Environmental Advisor prior to start of
construction to ensure relevant documents are listed.
Date last inspected /
reviewed
Site Waste Management Plan / Waste Transfer Notes
Invasive Species Management Plan
Natural Resources Wales Llyn Tegid Reservoir Safety Project Environmental Action Plan
24
report / plans /
registers (Must
be inspected
monthly)
Materials Management Plan
Work Method Statements
Site induction / Environmental toolbox talk register (have all site
personnel attended)
Are environmental consents in place and still valid (e.g. Flood Risk
Activity Permit, Protected Species License, etc)
Actions to be taken: (prevention, protection?) Actions to be taken: (prevention,
protection?) Any actions associated with a defect (i.e. a part of the works which is not in
accordance with the Works Information) or a breach of specifications as listed within
the EAP must be highlighted in yellow for site supervisor attention.
Who / When: (Person
responsible / when must
the action be close off
by)
• •
Outstanding actions from previous visit: Who / When: (Person
responsible / when
should the action have
been closed off by)
• •
Date ECoW last updated Environmental Action Plan (EAP) Date:
Report
completed
by:
Name:
Role:
Date:
Report
issued to:
Date:
Date:
Date:
Date:
Photographs (i.e. Progress of Works / Meeting Standards / Failing Standards)
Photograph
Brief Description
Example:
Example: 2 types of
Terram in use for
compound/ access track.
Tree protection fencing to
left of view (Hi-Viz).
Cabins will extend further
into field.